I'm trying it on the benchmark_tx and benchmark_rx scripts as i need to make it
at least a half duplex communication between the two devices, i need to free up
the resources if not i will get error message that states that the resource is
busy.
Another question that i observed is that, there seems to be no way to stop the
receiver once it is activated unlike the transmitter. Any suggestions to
that?Regards,Joreen> Date: Tue, 27 Jan 2009 21:48:10 -0800> From:
[email protected]> To: [email protected]> CC: [email protected]>
Subject: Re: [Discuss-gnuradio] help: cannot send after transport endpoint
shutdown> > On Wed, Jan 28, 2009 at 01:41:06PM +0800, Joreen Tan wrote:> > > >
Hi,> > > > I have got this error message when i'm trying to use this two
commands to free up the usb resource,> > > > modprobe -vr ehci_hcd> > modprobe
-v ehci_hcd> > > > the error message is: > > > > usb_control_msg failed: error
sending control message: Cannot send after transport endpoint shutdown> > > Can
anyone help me with this? i don't really quite understand this> > error
message.. It was initially working fine until i tried it for> > the second
time.. Regards,Joreen> > > From the modprobe man page, note particularly the
second paragraph:> > -r --remove> This option causes modprobe to remove, rather
than insert a mod-> ule. If the modules it depends on are also unused,
modprobe> will try to remove them, too. Unlike insertion, more than one> module
can be specified on the command line (it does not make> sense to specify module
parameters when removing modules).> > There is usually no reason to remove
modules, but some buggy> modules require it. Your kernel may not support
removal of mod-> ules.> > Eric
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